China's influence will grow in the coming years as their GDP grows. The U.S imports most of its products only from China.
China's GDP will grow more than that of the U.S. (Also note, in the year 2047, economies of Hong Kong & Macau will become part of China. Making China's GDP even grow more).
China has a vote in the UN.
China is now giving loans to Asian and African countries for building roads and ports in their countries. So China will get 'interest' for their money in the future and these countries will also trade more with China and obey the words of China.
China gave the loan to Sri Lanka for building a port in their country. The port has built but it doesn't make any money. So, now a new deal was made and the port and the land around it will be part of China for 99 years.
China has provided Sri Lanka with over $5 billion between 1971 and 2012, and most of this has gone into infrastructure development, with China investing $1 billion into a deep-water port at Hambantota and billions into the Mattala Airport, a new railway, and the Colombo Port City Project.
Not only Sri Lanka, China provided loans to many African and Asian countries.
Chinese loans come with a high-interest rate. Sri Lanka borrowed $301 million from China with an interest rate of 6.3%, while the interest rates on soft loans from the World Bank and the Asian Development Bank (ADB) are only 0.25–3%. Interest rates of India’s Line of Credit to the neighboring countries are as low as 1%, or even less, in some cases.
Also, Chinese will be the ones working in China funded projects around the world.
So, China will earn money from other countries.
China would be richer than the USA if it has oceans all around it. Because it makes trade easier. It applies to all countries.
In the USA, the eastern and the westerns states are richer than the middle states because of the ocean.
Russia has a big ocean surrounding it but most of it is frozen. That's the reason why they annexed Crimea.
Now the U.S dollar is the world currency. So, countries all over the world have purchased the U.S dollar. Once some other currency replaces the world currency then the U.S dollar will lose some of its current value.